The Effect of Acute Exercise on Encoding and Consolidation of Long-Term Memory
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Evidence supports that acute exercise benefits long-term memory. However, it is unclear whether these effects are due to benefits to encoding or consolidation. The purpose of this study was to more effectively isolate encoding and consolidation to advance our understanding of the specific nature of the effects of exercise on long-term memory. Using a within-subject design, participants completed a control session (no exercise), an encoding and consolidation condition (exercise prior to exposure to the memory task, E + C), and a consolidation condition (exercise following exposure). The exercise was 30 min of moderate-intensity cycling. Memory was assessed using the Rey Auditory Verbal Learning Test with recall assessed at 60 min and recall and recognition assessed at 24 hr. Results showed that the E + C condition had significantly better recall at 60 min and 24 hr than the no-exercise condition. This provides additional evidence that acute exercise benefits encoding more than consolidation.
Labban is with the School of Health and Human Sciences, and Etnier, the Dept. of Kinesiology, University of North Carolina Greensboro, Greensboro, NC.
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